chore: rename script dtslint to lint:dts in package.json

And update README

Author: remarkablemark

README.md

@@ -267,7 +267,6 @@ Lint files:
 
 ```sh
 $ npm run lint
-$ npm run dtslint
 ```
 
 Fix lint errors:
@@ -276,6 +275,12 @@ Fix lint errors:
 $ npm run lint:fix
 ```
 
+Test TypeScript declaration file for style and correctness:
+
+```sh
+$ npm run lint:dts
+```
+
 ## Benchmarks
 
 ```sh

package.json

@@ -12,8 +12,8 @@
     "clean": "rimraf dist",
     "coveralls": "nyc report --reporter=text-lcov | coveralls",
     "lint": "eslint --ignore-path .gitignore --ignore-pattern /examples/ .",
+    "lint:dts": "dtslint .",
     "lint:fix": "npm run lint -- --fix",
-    "dtslint": "dtslint .",
     "prepublishOnly": "npm run lint && npm run dtslint && npm test && npm run build",
     "release": "standard-version --no-verify",
     "test": "mocha",